The Personal Blog of a Geek in Arizona

RFID Interlock (Web enabled)

…a web-enabled RFID interlock loosely based on 23b’s Open Access Control system?
Indeed! This is a horrible photo, but inside the lovingly-crafted cardboard box is a custom-made Arduino shield, an Arduino Ethernet, some wiring, and then the visible RFID reader, buttons, and LEDs. Also there’s a piezo speaker in there.

Off to the side is a relay board with a transistor and 120V 10A relay that switches stuff off and on to its heart’s content.

Its purpose? To get spliced in between the critical wiring of whatever you want to control, and then you can control its usage via a separate web server and database.

For example, effective parent control over an Xbox; keeping noobs out of the pantry; making sure only certified people use the laser cutter; having the coolest high-tech bouncer for your party ever, etc.